Spring injection valve for boiler feed water deaerator

摘要

The present invention is a membrane type using a spindle-shaped spindle to increase the contact rate of the gas in the degassing apparatus that separates and removes the dissolved gas mixed in the water supply by contacting the water supply flowing through the water supply system of the boiler with high temperature steam. The present invention relates to an injection valve for a boiler feed degassing apparatus for injecting oil into a boiler. It is an object of the present invention to provide a spring injection valve for a boiler feed degassing apparatus that can maintain a state.;That is, in the present invention, in the spring injection valve (1) for the boiler feedwater degasser, the body (2) and the spindle (7) are formed in a tapered shape so that the spindle (7) is connected to the body (2) at the outlet port (4). When engaging, the two members are tapered to intermittently discharge the outlet 4, and the coupling of the shaft 6 and the spindle 7 forms a spindle coupling part 6a at the lower end of the shaft 6. And the end of the spindle coupling portion (6a) in the state fitted in the assembly hole (7a) formed in the center of the spindle (7) and larger than the diameter of the spindle coupling portion (6a) by pressing the end of the spindle 7 The fixing protrusion 6b is formed to be formed, and the lower end of the spring 10 is placed on the lower spring support 9 coupled to the support coupling portion 2a formed on the tapered body 2 and the spring ( 10) was configured to fit the bottom of the body (2).;According to the present invention, the parts can be simplified, manufacturing cost can be reduced, assemblage can be greatly improved, and when the spindle 7 is moved up and down, it is guided along the inner surface of the body 2 and the surface contact is made in a tapered shape. Stability can be ensured, and the concern that the spring 10 is separated from the body 2 can be eliminated.;Spring injection valve, body, spindle, tapered coupling, spring support